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Niriin s'raas EDGAR M. STEVENS, OF BOSTON, MASSAGHISE'IIS, ASSIGNOR 'TOHIMSELF ANI) LEVI L. TOH'ER, 0F SAME PLACE.

MACHINE FOR. WINDING THREAD.

i Specification of Letters Patent No. 31,858, dated February 5, 1861.

To all whom it 'may concern:

Be it known that I, EDGAR M. STEvENs, of

Boston, in the county of Suffolk and State of Massachusetts, haveinvented a new and useful Improvement in. Machinery for Spooling Threador Yarn; and I do hereby declare the same to be fully described in thefollowing specification and represented in the accompanying drawings, ofwhich- Figure 1, is a top view; Fig. '2, aside elevation, and Fig. 3, anunderside view of a machine containing my invention, which consists in apeculiar combination of mechanism, 'the object of which is not only toproduce the reciprocating movements of a yarn guide relatively to aspool while in revolution, but the variation of the velocity of suchmovements in such manner as will adapt the machine to the correctspooling of thread or yarn of any diameter or size such as it may7 bedesirable to wind on the spool carried by the machine.

The nature of the said invention consists in the combination andarrangement of an adjustable circular plate worm gear and its rotaryscrew with a cam wheel and cam ap? plied to put in action the threadcarrier or guide, the whole being made to operate together and with thespool and the mechanism for putting such spool in rotation substantiallyas hereinafter explained.

In the drawings, A, denotes a spool or bobbin carried by an arbor, B,which is supported by a puppet head, C, elevated on a frame or table, D.Furthermore, from the said table, a spindle, a, extends upward and isfor the purpose of carrying a bobbin, I), from which the thread, c to bewound upon the spool, A, is to be taken. This thread passes twicethrough an arm, E, and through a notch, made in its outer end, the saidarm being extended from a vertical shaft, g, which projects both aboveand below the table, turns in a suitable bearing, t, and carries anotherarm, z'. A small stud or pin, extending from the arm, rests against theworking surface of a cam, F, which is affixed to one side of a wheel Grthat runs on a pin Z, extended from a lever, m. The periphery of thewheel, G, works against the lower side of a circular plate or worm gear,II, which is supported by and so as to be capable of freely rotating ona stud, 0, extended froni a long lever, I. This lever, I, lies againstthe underside of the table, D,

and turns on a fulcrum, y), arranged at or near one end of such lever asshown in the v drawings.

The inferior side of the worin gear II, is

a flat surface. A long worm or screw K, engages with the toothedperiphery of the said worm gear, and is arranged with reference theretoas shown in Fig. 3. This screw,

is borne up to the gear by a spring L, and is suitably supported inbearings so as to be capable of being put in revolution by means of anendless band, M, which works in the grooved periphery of a drivingwheel, N, and around four pulleys, O, P, Q, R, one of which, (viz. P) isfixed `on the shaft, S, of the screw, K, while another (viZ..It,) iscarried by the arbor, B. Thus, while the wheel N, is in rotation, thesaid arbor, B, and the screw, K, will be put in revolution.

The wheel, G, is borne up against the lower or inferior surface of thegear, I-I, by a spring, T, connected to the levers, m, and I.

By means of the lever, I, axis of the wheel H may be moved either nearerto or farther from the wheel, Gr, the two wheels being all the time incontact. As the worm gear receives its rotary motion from the screw K,and remains in engagement with such screw, and furthermore as the flatsurface of the worm gear imparts rotary motion to the wheel, G, and itscam, F, it will be evident that the nearer the wheel, G, is to the axisof the wheel I-I, the slower must be the rate of revolution of the saidcam.

The cam should be so formed as to impart to the thread carrier equaldegrees of motion in equal times, and not only move the thread carrierfrom one head to the other of the spool, but so regulate its return orbackward movement that it shall be at a regular rate, each of the twomovements being such as will wind the thread or yarn on the spool in aregular helix having its coils in close contact with one another. Thereturn movenient of the thread carrier is effected by a spring, U,attached to it and a post, V, projecting upward from the table, D.

From the above it will 'be seen that the ner the thread or yarn to bewound on the spool, the slower should be the motion imparted to thethread carrier; also, that by laying hold ofand moving the lever, I, wecan vary the rate of motion of the thread guide as circumstances mayrequire.

The lever I, may serve as an index to a divided are suitably placed onthe table, such arc indicating,` by its divisions and figures, theVarious positions of the lever or 5 the adaptation of the machine to thespooling 'of Various sizes or numbers of yarn or thread.

I claim- The combination and arrangement of the adjust-able plate 'Woringear, H, and its ro- 10 tary screw, K, or their equivalent orequivalents with the cam Wheel, G, and the cam, F, applied to operatethe thread carrier substantially as specilied.

E. M. STEVENS. Witnesses R. H. EDDY, F. P. HALE.

